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Keck High-Resolution Spectroscopy of Mrk 335: Constraints on the Number of Emitting Clouds in the BLR

  • Nahun Arav (a1), Tom A. Barlow (a1), Roger D. Blandford (a1) and Ari Laor (a2)

Abstract

By applying cross-correlation (CC) techniques to high-resolution (~ 6km s−1), high S/N (~ 400 at Hα line center) spectra of Mrk 335, we are able to put a lower limit of ~ 3 × 106 on the number of emitting clouds in this objects. This limit is applicable for clouds with T = 2 × 104 K and an optical depth of a few hundred in their Hα line. Current BEL models based on stellar atmospheres of bloated stars can be ruled out based on this lower limit.

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      Keck High-Resolution Spectroscopy of Mrk 335: Constraints on the Number of Emitting Clouds in the BLR
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References

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Alexander, T., & Netzer, H. 1994, MNRAS, 270, 803.
Atwood, B., Baldwin, J.A., & Carswell, R.F. 1982, ApJ, 257, 559.
Kazanas, D. 1989, ApJ, 347, 74.
Scoville, N., & Norman, C. 1989, ApJ, 332, 162.

Keck High-Resolution Spectroscopy of Mrk 335: Constraints on the Number of Emitting Clouds in the BLR

  • Nahun Arav (a1), Tom A. Barlow (a1), Roger D. Blandford (a1) and Ari Laor (a2)

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